Blogger Dennis Best, who previously schooled us about the value of built-in Getting Things Done apps, expands on his all-inside-the-Mac thinking by noting a simple way to organize every email message, document, iCal event, or other file. Add the ° character (Shift-Option-8 on Mac keyboards) directly in front of any word you want to track with, and both Spotlight (and, of course, Quicksilver) can quickly catch and sort your keywords for you. Guest poster Nick Santilli suggested a similar metadata system using the "&" character, but Dennis' idea tags files by adding only a single, non-intrusive step you can do right inside the text.